Machine foe chamfering soles of boots and shoes



UNITED STATES PATENT OFFICE.

WILLIAM JOHNSON, OF I-IAMPSTEAD', NEW HAMPSHIRE.

MACHINE FOR CHAMFERING SOLES 0F BOOTS AND SHOES.

Speccaton of Letters Patent No. 23,585, dated April 12, 1859.

To all whom "Lt may concern:

Be it known that I, WILLIAM J oHNsoN, of Hampstead, in the county ofRockingham and State of N ew Hampshire, have invented an improvement inthe tool. for chamfering soles for boots and shoes for which LettersPatent of the United States numbered 21,760 were granted to me on the12th day of October, A. D. 1858; and I do hereby declare that the sameis fully described and represented in the following specification andthe accompanying drawings, of which- Figure l, is a top view; Fig. 2, afront elevation; Fig. 3, a rear elevation, and Fig. 4, a transversesection of my improved chamfering tool.

Such tool as exhibited in the drawings is composed of a knife holder A,a stationary edge bearer B, a sole rest C, a spring presser D, and aknife F, the said knife being provided with a handle 7L, and insertedwith the knife holder and held in place therein by a screw ai. From thesaid knife holder a lip ZJ, extends upward at a right angle, and hasformed through it a curved slot c, for the reception of a clamp screwCZ, which extends through the said slot, and into another' such lip orcarrier f, projecting upward from and serving to support the sole restC, as well as the edge rest B.

In the chamfering tool as patented by me, a handle was fastened directlyto the sole rest and extended outward therefrom at a right angle to theknife and gave sup ort to the spring presser which also stoo or wasarranged about at a right angle with the knife edge.

In my present improved tool, I dispense entirely with the said handleand in place thereof extend the sole rest backward with respect to theknife and its handle as shown in the drawings or so as to enable me toarrange the spring presser about parallel to the knife edge in avertical direction as indicated in the figures, the same causing t-hespring presser to bear directly against or upon the edge of the soleinstead of at a distance therefrom as it is likely to when arranged asin my patented tool.

Vhen the presser rests on the sole inside of its edge, and not directlyon the edge, the edge of the sole is liable not to be reduced to thedesired thickness or to be unevenly cut, but by making the presser standat a right angle to the direction of movement of the knife while it maybe cutting a sole, the edge of the sole will be borne firmly down uponthe sole rest and will be evenly cut. Besides, the presser is not likelyto twist or exert a torsion strain so as to affect the proper adjustmentof the knife with respect to the sole and edge rests as it is likely toin the arrangement of the spring presser as shown in my patentedchamfering tool.

The aforesaid new arrangement of the presser and its rest or support C,with ref erence to the carrier f, and the knife holder not only aordsadvantages in the action of the presser on the sole, but enables me todispense with the handle project-ing from the presser support and tomake use of the knife handle lz, as a means for holding the wholeinstrument and moving it against a sole. While my improved tooltherefore preserves the invent-ion heretofore patented, viz., a meansnot only of adjusting the angular position of the knife with respect tothe sole rest, but the distance of the knife therefrom at the edge gage,it contains an important improvement in the arrangement of the springpresser and the sole rest.

Therefore, I claim- The improved chamfering tool or manufacture, asconstructed with its sole rest and presser arranged with respect to thecarrier,

f, and the knife holder substantially as shown in the accompanyingdrawings and.

as hereinbefore specified.

In testimony whereof I have hereunto set my signature.

WILLIAM JOHNSON. Witnesses:

ALBERT M. EDDY, F. P. Ham, Jr.

